Evidence mapPaperPMID 42056921Full record

ArticleBMC gastroenterology2026

A novel serum metabolite classifier for identifying Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) integrating metabolomics and machine learning.

Binghui Li, Yiru Zhang, Ziyang Li, Zhiyang Chen, Zhe Guo, Weimin Wu, Li Tan, Lini Dong, Xiangyu Zhang, Xing Lyu and 2 more

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Article in BMC gastroenterology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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12 authors.

Binghui Li *Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Yiru Zhang *Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Ziyang LiDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Zhiyang ChenDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Zhe GuoDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Weimin WuDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Li TanDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Lini DongDepartment of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Xiangyu ZhangDepartment of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Xing LyuDepartment of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Min Hu *Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China. huminjyk@csu.edu.cn.
Qichen Long *Department of Laboratory Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China. qclong@csu.edu.cn.

Funding

the National Natural Science Foundation of China No.82302586
6 · The paper itself

Abstract

backgroundMetabolic dysfunction-associated steatotic liver disease (MASLD) presents a growing global health burden, while reliable non-invasive biomarkers for identifying affected individuals remain limited. This study aimed to characterize serum metabolomic signatures associated with steatosis and fibrosis and to develop a clinically applicable metabolite-based classifier.

methodsUntargeted serum metabolomics was performed in a FibroScan-characterized discovery cohort (n = 35) to identify candidate metabolic features associated with hepatic steatosis and fibrosis burden. To provide biological context for the observed metabolic alterations, 16 S rDNA sequencing was subsequently conducted in paired fecal samples from a subset of participants (n = 27). Differential metabolites were then subjected to LASSO regression for feature selection and used to construct a random forest diagnostic model in a validation cohort comprising healthy controls (n = 19) and ultrasound-confirmed MASLD patients (n = 52).

resultsMetabolomic profiling revealed distinct metabolic patterns across different degrees of steatosis and fibrosis. A total of 55 and 46 metabolites were identified as differentially abundant in relation to steatosis and fibrosis burden, respectively. Microbiome analysis indicated alterations in gut microbial composition, and integrative correlation analysis suggested several potential microbe-metabolite associations, including two metabolite-genus pairs showing relatively strong correlations. LASSO regression selected a panel of ten metabolites as the most informative diagnostic features. Using these metabolites as input variables, a random forest classifier was constructed and achieved an area under the receiver operating characteristic curve (AUROC) of 0.87. Incorporation of four clinical variables (BMI, ALT, triglycerides, and HDL cholesterol) further improved model performance, yielding an AUROC of 0.94.

conclusionThis study characterizes systemic metabolic alterations associated with MASLD and presents a non-invasive diagnostic model integrating serum metabolites with clinical indicators. Together, these findings highlight the potential utility of metabolomics-assisted approaches for identifying MASLD and for improving biological understanding of disease-associated metabolic changes.

Indexed as

Fatty LiverMachine LearningMetabolomicsNon-alcoholic Fatty Liver DiseaseAdultBiomarkersCase-Control StudiesFecesFemaleGastrointestinal MicrobiomeHumansLiver CirrhosisMaleMiddle AgedRandom ForestBiomarkersChineseGut microbiotaMachine learningMetabolic dysfunction-associated steatotic liver diseaseMetabolomics

Identifiers

PMID42056921
PMCPMC13270585

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.